Top 7 5/16-18 Coupling Nut – Coupling Nuts

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1. U-Turn Fasteners, Inc.

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U-Turn, 5/16-18 Coupling Nut Zinc Plated 1-3/4" Length 5 Pack

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U-Turn Fasteners, Inc. #ad - Width across the flats - 1/2". Material - low Carbon Steel, Zinc Clear. Item type: Hex Coupling Nut. Length - 1-3/4". Thread size - 5/16"-18.
BrandU-Turn Fasteners, Inc. #ad
ManufacturerU-Turn Approved Manufacturer #ad

2. Hard-to-Find Fastener

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Hard-to-Find Fastener 014973403331 Coarse Rod Coupling Nuts, Piece-20, 5/16-18

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Hard-to-Find Fastener #ad - Diameter 2: 1/2 inch. Diameter 1: 5/16 Inch. Driver type: 1/2" Wrench. Finish: Zinc. Finish: Zinc. Material: Steel. Diameter: 5/16". Material: Steel. Length: 1-3/4 inch. Length: 3/4 Inch.
BrandHard-to-Find Fastener #ad
ManufacturerHard-to-Find Fastener #ad
Height2.13 Inches
Length3.5 Inches
Weight1.46 Pounds
Width3.13 Inches
Part NumberCNS2-030-20
Model014973403331

3. Hard-to-Find Fastener

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Piece-8, Hard-to-Find Fastener 014973322113 Coarse Coupling Nuts, 5/16-18

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Hard-to-Find Fastener #ad - Diameter 1: 5/16 inches. Length: 3/4 inches. Finish: Zinc. Material: Steel. Diameter 2: 1/2 inch.
BrandHard-to-Find Fastener #ad
ManufacturerHard-to-Find Fastener #ad
Height1.44 Inches
Length2.5 Inches
Width2.19 Inches
Part NumberCNS2-030-8
Model014973322113

4. Newport Fasteners

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A563 Grade A Steel, Hex Coupling Nuts 5/16"-18 x 7/16" x 7/8", Length: 7/8", Width: 7/16", Zinc Plated Quantity: 100 Thread Size: 5/16"-18

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Newport Fasteners #ad - Also referred to as Rod Couplings. Across the flats: 7/16" inches. The length of the nut is 2. 5d where d equals the basic major thread diamter.
BrandNewport Fasteners #ad
ManufacturerNewport Fasteners #ad
Part NumberNB303019P-100

5. Hard-to-Find Fastener

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50-Piece, Hard-to-Find Fastener 014973322120 Rod Coupling Gr2, 5/16-18-Inch

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Hard-to-Find Fastener #ad - Diameter: 5/16". Length: 1-3/4 inch. Length: 3/4 inches. Finish: Zinc. Diameter 2: 1/2 inch. Material: Steel. Finish: Zinc. Diameter 1: 5/16 inches. Material: Steel. Driver type: 1/2" Wrench.
BrandHard-to-Find Fastener #ad
ManufacturerHard-to-Find Fastener #ad
Height3.25 Inches
Length4.12 Inches
Width3.25 Inches
Part Number014973322120
Model014973322120

6. Magic Hab

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Hex Rod Coupling Nut with Zinc Plate, Hex Coupling Nuts 5/16-18 X 1-3/4" Threaded Rod Connector 4, Hex Coupling Nut, Coupling Nuts 5/16-18 X 1-3/4" Long Coupling Nut

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Magic Hab #ad - Coupling nuts are threaded fasteners for joining two male threads, most commonly threaded rod. Package include: 4 x Hex Coupling Nut. 5/16-18 x 1-3/4" long, 1/2" across the flats steel coupling nut with zinc finish. Coupling nuts are used to make up long rod assemblies from shorter lengths of rods. Zinc plate over steel - more rust resistant.
BrandMagic Hab #ad
ManufacturerImported #ad

7. The Hillman Group

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The Hillman Group 2200 5/16-18-Inch Coupling Nut, Zinc, 10-Pack

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The Hillman Group #ad - Use with Threaded Rod. Zinc-plated Finish. From the brand Name: The Hillman Group. For industrial Applications.
BrandThe Hillman Group #ad
ManufacturerThe Hillman Group #ad
Height1.6 Inches
Length2.4 Inches
Width2.6 Inches
Part Number2200
Model2200